Prevalence of gastrointestinal malignancy in non-anemic iron deficiency and significance for endoscopic screening: A Western Australian multicenter cohort study.

This study demonstrates that anemic iron deficiency confers a significantly greater risk of gastrointestinal cancer compared with non-anemic iron deficiency. Additionally, over 60% of patients had gastrointestinal pathology to account for iron deficiency overall, supporting the need to perform baseline endoscopy in patients with iron deficiency.